Josh Radnor Ted Mosby Actor Jason Segel Marshall Erikson Actor Neil Patrick Harris Barney Stinson Actor Alyson Hannigan Lily Aldrin Actor Cobie Smulders Robin Sherbatsky Actor Bob Saget Narrator John Duerler Harlen Johnsen Guest Star Joel McCrary Ged Wilkinson Guest Star Tanner Maguire 12 Year-Old Barney Guest Star Kit Pongetti Fran Guest Star Katie Hein Jenni Guest Star Mary Ann Jarou Jenny Guest Star Austin Majors 12 Year-Old Matthew Guest Star Kurt Long Galoshes the Weather Clown Guest Star Steven Montfort Matthew Panning Guest Star Bianca Lopez Gennie Guest Star Dan Castellaneta Milt Guest Star Carter Bays Executive Producer Craig Thomas Executive Producer Stephen Lloyd Writer Pamela Fryman Director